diff options
| author | Trent Piepho <xyzzy@speakeasy.org> | 2007-07-24 12:06:16 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2007-10-16 15:57:55 +0200 |
| commit | b18cd538a92247307247a53f57c477edbcedbb79 (patch) | |
| tree | 0fd32216c26bc78f95be8b8f56052e370f7f7f43 /sound/pci/ca0106/ca0106_main.c | |
| parent | [ALSA] sound/pci/cs46xx/: fix an off-by-one (diff) | |
| download | linux-b18cd538a92247307247a53f57c477edbcedbb79.tar.xz linux-b18cd538a92247307247a53f57c477edbcedbb79.zip | |
[ALSA] ca0106: Add analog mute controls for cards with SPI DAC
Add four mute controls for the analog output channels for cards that use
an SPI DAC, like the SB0570 SB Live! 24-bit / Audigy SE. The Wolfson DAC
doesn't support muting left/right so the controls are mono.
The chip state struct gets a 32-byte array to act as a shadow of the spi
dac registers. Only two registers are used for mute, but more would be
needed for analog gain, de-emphasis, DAC power down, phase inversion, and
other features.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/pci/ca0106/ca0106_main.c')
| -rw-r--r-- | sound/pci/ca0106/ca0106_main.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/sound/pci/ca0106/ca0106_main.c b/sound/pci/ca0106/ca0106_main.c index 58ffa0cacfb1..512fda946c66 100644 --- a/sound/pci/ca0106/ca0106_main.c +++ b/sound/pci/ca0106/ca0106_main.c @@ -1,7 +1,7 @@ /* * Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk> * Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit - * Version: 0.0.23 + * Version: 0.0.24 * * FEATURES currently supported: * Front, Rear and Center/LFE. @@ -79,6 +79,8 @@ * Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901 * 0.0.23 * Implement support for Line-in capture on SB Live 24bit. + * 0.0.24 + * Add support for mute control on SB Live 24bit (cards w/ SPI DAC) * * BUGS: * Some stability problems when unloading the snd-ca0106 kernel module. @@ -1484,8 +1486,13 @@ static int __devinit snd_ca0106_create(int dev, struct snd_card *card, int size, n; size = ARRAY_SIZE(spi_dac_init); - for (n=0; n < size; n++) + for (n = 0; n < size; n++) { + int reg = spi_dac_init[n] >> SPI_REG_SHIFT; + snd_ca0106_spi_write(chip, spi_dac_init[n]); + if (reg < ARRAY_SIZE(chip->spi_dac_reg)) + chip->spi_dac_reg[reg] = spi_dac_init[n]; + } } if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, |